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+################################################################################
+# Treboot DReboot the system
+
+	reboot
+
+	Causes the system to immediately reboot.
+
+################################################################################
+# Theap DDisplay memory management statistics
+
+	heap
+
+	Requests debugging output from the heap manager.  For debugging use
+	only.
+
+################################################################################
+# Tset Snum_ide_disks DSet the number of IDE disks
+
+	NOTE: this variable is deprecated, use root_disk_unit instead.
+
+	set num_ide_disks=<value>
+
+	When booting from a SCSI disk on a system with one or more IDE disks,
+	and where the IDE disks are the default boot device, it is necessary
+	to tell the kernel how many IDE disks there are in order to have it
+	correctly locate the SCSI disk you are booting from.
+
+################################################################################
+# Tset Sboot_userconfig DStart Userconfig
+
+	set boot_userconfig
+
+	Requests that the kernel's interactive device configuration program
+	be run when the kernel is booted.
+
+################################################################################
+# Tset Sroot_disk_unit DForce the root disk unit number.
+
+	set root_disk_unit=<value>
+
+	If the code which detects the disk unit number for the root disk is
+	confused, eg. by a mix of SCSI and IDE disks, or IDE disks with
+	gaps in the sequence (eg. no primary slave), the unit number can be
+	forced by setting this variable.
+
+################################################################################